Question

Could you please help me?

Select the statements that are true based on the following given information.

D = {x | x is a whole number}

E = {x | x is a perfect square < 36}

F = {x | x is an even number between 20 and 30}


So, I can choose from these options:

The expression D∩E is {1, 4, 9, 16}.
The expression D∩F is {12, 14, 16, 18}.
D∪(E∩F) is {all whole numbers}.
(E∩F) is the empty set.
The expression D∩(E∩F) is 25.

I think that the last two are correct, but I'm not sure... could you help me?